Submitted on: 20 October 2017.
Revised on: 15 December 2017.
Accepted on: 15 January 2018.
___________________BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY
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Submitted on: 29 June 2014.
Revised on: 21 July 2014.
Accepted on: 28 August 2014.
___________________BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY
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Submitted on: 29 March 2011.
Revised on: 28 May 2011.
Accepted on: 07 July 2011.
___________________BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY
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